MoinQ: watchNS/co.jp/bentley.co.jp

watchNS/bentley.co.jpについて、ここに記述してください。

$ dnsq ns bentley.co.jp ns1.bentley.com
2 bentley.co.jp:
110 bytes, 1+2+0+2 records, response, authoritative, weird ra, noerror
query: 2 bentley.co.jp
answer: bentley.co.jp 86400 NS ns1.bentley.com
answer: bentley.co.jp 86400 NS ns2.bentley.com
additional: ns1.bentley.com 3600 A 64.90.235.5
additional: ns2.bentley.com 3600 A 64.90.237.5
tmaeno@tm:~$ dnsq ns bentley.co.jp ns2.bentley.com
2 bentley.co.jp:
110 bytes, 1+2+0+2 records, response, authoritative, weird ra, noerror
query: 2 bentley.co.jp
answer: bentley.co.jp 86400 NS ns2.bentley.com
answer: bentley.co.jp 86400 NS ns1.bentley.com
additional: ns2.bentley.com 3600 A 64.90.237.5
additional: ns1.bentley.com 3600 A 64.90.235.5
tmaeno@tm:~$ dnsq any bentley.co.jp ns2.bentley.com
^C
tmaeno@tm:~$ dnsq any bentley.co.jp ns1.bentley.com
^C

MXもない。

1. 悪化?

-- ToshinoriMaeno 2017-06-17 12:22:34

$ dig +norec -t ns bentley.co.jp @ns1.bentley.com.

; <<>> DiG 9.11.1 <<>> +norec -t ns bentley.co.jp @ns1.bentley.com.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: FORMERR, id: 6112
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: 4f00cf3120dd0e6f (echoed)
;; QUESTION SECTION:
;bentley.co.jp.                 IN      NS

;; Query time: 186 msec
;; SERVER: 64.90.235.5#53(64.90.235.5)
;; WHEN: Sat Jun 17 21:18:28 JST 2017
;; MSG SIZE  rcvd: 54

cookieのせいだった。

$ dig +nocookie -t ns bentley.co.jp @ns1.bentley.com.

; <<>> DiG 9.11.1 <<>> +nocookie -t ns bentley.co.jp @ns1.bentley.com.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 62161
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 3

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4000
;; QUESTION SECTION:
;bentley.co.jp.                 IN      NS

;; ANSWER SECTION:
bentley.co.jp.          86400   IN      NS      ns2.bentley.com.
bentley.co.jp.          86400   IN      NS      ns1.bentley.com.

;; ADDITIONAL SECTION:
ns2.bentley.com.        3600    IN      A       64.90.237.5
ns1.bentley.com.        3600    IN      A       64.90.235.5

;; Query time: 184 msec
;; SERVER: 64.90.235.5#53(64.90.235.5)
;; WHEN: Sat Jun 17 21:20:50 JST 2017
;; MSG SIZE  rcvd: 121